Twenty fours after admission, entry examination in the form of complete nerve conduction study from 4 motor nerves (median, ulnar, tibial and common peroneal nerve) and 2 sensory nerves (median and sural nerve) will be performed. These will consist of Compound Motor Action Potential(CMAP) measurement from motor nerves and Sensory Nerve Action Potential (SNAP) assessment from sensory nerves. Before the electrophysiological tests, heat packs will be applied to the skin if its temperature is below 33°C.